Backbone

Pronunciation

• IPA: /ˈbækËŒbəʊn/

Origin

From back + bone.

Full definition of backbone

Noun

1. The series of vertebrae, separated by disks, that encloses and protects the spinal cord, and runs down the middle of the back in vertebrate animals.
2. any fundamental support, structure, or infrastructureBefore automobiles, railroads were a backbone of commerce.
3. courage, fortitude, or strengthHe would make a good manager, if he had a little more backbone.

Synonyms

• spine
• spinal column
• vertebral column